Results 121 to 130 of about 36,105 (226)

A Strong Lewis Acidic Diethylsilylium Catalyst for Direct Sulfonamidation of Challenging Ketones

open access: yesAdvanced Science, Volume 13, Issue 46, 17 August 2026.
Low‐substitution‐order silylium ions (R2HSi+) exhibit exceptional Lewis acidic activity. We report diethylsilylium‐catalyzed reductive sulfonamidation of functionalized ketones to access β‐amino esters. The in situ generated ion pair shows enhanced reactivity, with diethylsilane serving as both reductant and precatalyst. The developed protocol proceeds
Woo Hee Kim   +5 more
wiley   +1 more source

Structure and temporal stability of adolescent psychotic experiences: findings from a German longitudinal cohort study. [PDF]

open access: yesPsychol Med
Nguyen PM   +7 more
europepmc   +1 more source

Bright and Durable Copper‐Iodide‐Based Nanowire Scintillators

open access: yesAggregate, Volume 7, Issue 8, August 2026.
A surface‐protective‐agent (SPA)‐coordinated low‐temperature crystallization strategy regulates the surface microenvironment of CsCu2I3 nanowires at the atomic level. The SPA simultaneously suppresses iodine‐vacancy‐related defects and nonradiative recombination while eliminating Cu2+ species and surface oxide formation, offering a coherent pathway to ...
Yandong Ren   +7 more
wiley   +1 more source

High Efficiency NIR Luminescence Beyond 900 nm Through Promoting Cr3+ Pair Generation in Sr3Zr2O7 Layered Perovskite

open access: yesLaser &Photonics Reviews, Volume 20, Issue 15, 7 August 2026.
A Cr3+/La3+ codoped Sr3Zr2O7 NIR phosphor showing luminescence at ∼960 nm with high IQE/EQE (92.4%/57.5%) and good thermal stability was developed. La3+ stabilizes Cr3+ and induces Cr3+ pairs, enabling efficient blue‐to‐NIR conversion for underwater wireless optical communication.
Zhiyuan Pan   +5 more
wiley   +1 more source

How Soon Is Now? [PDF]

open access: yesBiol Psychiatry Glob Open Sci
Arjmand S, Sellgren CM.
europepmc   +1 more source

Lectotypifications and taxonomic changes in the holoparasitic Orobanchaceae

open access: yesNordic Journal of Botany, Volume 2026, Issue 8, August 2026.
Based on further extensive studies of specimens in various herbaria, lectotypes are designated for many taxa of holoparasitic Orobanchaceae. In particular, 47 names in the genera Boschniakia (incl. Xylanche), Cistanche, Orobanche, Phelipanche and Phelypaea are lectotypified.
Holger Uhlich   +5 more
wiley   +1 more source

Can We Improve the Prediction of Early Onset Mania and Hypomania in the Community?

open access: yesBipolar Disorders, Volume 28, Issue 5, August 2026.
ABSTRACT Background There is broad agreement that the onset of bipolar disorders (BD) can be predicted by using combined estimates of familial, genetic and clinical risk. However, there is a lack of consensus about the operationalisation of different risk attributes (e.g., symptoms vs.
Jan Scott   +6 more
wiley   +1 more source

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